fix(portability): At least GCC 4.0 and GCC 4.2 want a typename here

Otherwise, it gives a "dependent-name 'SeqFile<T>::Error' is parsed as
a non-type, but instantiation yields a type" compilation error.

Issue #2.

src/ScummRp/file.hpp

@@ -338,7 +338,7 @@ template <class T> class SeqFile : public T
 			{
 				T::close();
 				_srcFile.close();
-				throw SeqFile::Error("SeqFile::close: Wrong size");
+				throw typename SeqFile::Error("SeqFile::close: Wrong size");
 			}
 		T::close();
 		_srcFile.close();